<template>
  <div class="app-header-sticky" :class="{show:y>=78}">
    <div class="container" v-show="y>=78">
      <RouterLink class="logo" to="/" />
      <AppHeaderNav />
      <div class="right">
        <RouterLink to="/" >品牌</RouterLink>
        <RouterLink to="/" >专题</RouterLink>
      </div>
    </div>
  </div>
</template>

<script>
// import {onMounted, ref} from 'vue'np
import { useWindowScroll} from '@vueuse/core'
import AppHeaderNav from './app-heaer-nav'
export default {
  name: 'AppHeaderSticky',

  components: { AppHeaderNav },
  setup(){
    const {y} =useWindowScroll()
    return {y}
  }
  // setup(){
  //   // 纪录Y轴卷曲的高度
  //   const y=ref(0)
  //   //当你页面流动的时候更新它
  //   onMounted(()=>{
  //     window.onscroll=()=>{
  //       const scrollTop=document.documentElement.scrollTop
  //       console.log(scrollTop);

  //       y.value=scrollTop
  //     }
  //   })
  //   // 提供Y给横版使用
  //   return {y}
  // }
}
</script>

<style scoped lang='less'>
.app-header-sticky {
  width: 100%;
  height: 80px;
  position: fixed;
  left: 0;
  top: 0;
  z-index: 999;
  background-color: #fff;
  border-bottom: 1px solid #e4e4e4;
  transform: translateY(-100%);
  opacity: 0;
  &.show{
    transition: all 0.3s linear;
    transform: none;
    opacity: 1;

  }
  .container {
    display: flex;
    align-items: center;
  }
  .logo {
    width: 200px;
    height: 80px;
    background: url(../assets/images/logo.png) no-repeat  right 2px;
    background-size: 160px auto;
  }
  .right {
    width: 220px;
    display: flex;
    text-align: center;
    padding-left: 40px;
    border-left: 2px solid @xtxColor;
    a {
      width: 38px;
      margin-right: 40px;
      font-size: 16px;
      line-height: 1;
      &:hover {
        color: @xtxColor;
      }
    }
  }
}
</style>
